Re: FS: Deluxe Option Board,Central Point

[David Wilson <david@uow.edu.au>]

mjmahon@aol.com (Michael J. Mahon) writes:
>Bryan Parkoff wrote:

>>    Please tell me how can you copy Apple II software diskettes in PC floppy
>>drives using Deluxe Option Board, but I doubt.

>By copying every flux transition, without regard to its "meaning".

Slight problem doing this with Apple II discs:

1) the src and dst drives would have to be spindle synced to
   successfully copy some copy protected discs or at least
   running at the same speed to copy even normal discs.

2) not interpreting the data means that a copy might start in
   the middle of a sector causing a glitch that would likely make it unreadable.

>If you made a magnetic "contact print" of a disk onto another disk,
>it would be a perfect copy, yet nothing in the process "understood"
>anything about what is on the disk.  (This process, BTW, can work
>for some magnetic media, though, of course, it is not tolerant of
>any defects in the destination media.)

That would have a better chance but still has problems as you indicate.
-- 
David Wilson  School of IT & CS, Uni of Wollongong, Australia